<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        div {
            /*italic倾斜*/
            font-style: italic;
        }

        em {
            /*normal正常*/
            font-style: normal;
        }
    </style>
</head>
<body>
<div>
    div文字
</div>
<em>
    倾斜em
</em>
</body>
</html>